I would agree - but without accurate testing, it's hard to say when it is stabilized. Pool Store testing of CYA is about as unreliable as things get - their FC testing isn't much better. 10PPM should show solid on a strip or the Ortho test, and it's not enough to risk bleaching the liner etc, but again, can't stress getting a decent drop test enough.
Once your FC appears to be holding (i.e. it's at around 10ppm, and you aren't having to keep adding more to stay there) then you should begin the
SLAM process to ensure any and all Algae is dealt with. The higher your CYA, the more chlorine the SLAM process will need, so it's in your interest NOT to increase CYA too much until you are done with the
SLAM, and you know you aren't dealing with any more algae etc in the pool. Once you're done, then you can look at bringing your CYA up to level, balancing out TA/PH
This saves you time and money. No purple goop, no magic potions, no 10.7oz Calcium Hypochlorite (which is just Chlorine bound to Calcium, instead of Sodium which is bleach). 10.7oz of Cal-Hypo would raise your calcium by 2ppm. Its pointless...unless you're selling Cal-Hypo.
Time, chemistry and patience...its kinda what we do here